LOS ANGELES (March 6) - Rock act Mute Math is so frustrated at being branded a Christian band by Warner Music Group's Christian outlet Word Records, it has taken matters into its own hands, self-releasing its debut album Feb. 1. And last September, Billboard has learned, Teleprompt Records -- a label co-founded by Mute Math keyboardist Paul Meany -- filed suit against Warner Bros. Records and Word. The suit is for breach of contract and negligent misrepresentation, and seeks punitive damages. Warner, however, might be somewhat pardoned for the marketing approach. Mute Math was formed by Meany, formerly of the...